I'm a newbie....can you be more specific to your symptoms. What neuropathy in your arms and legs? They just put me on the "new" dilantin" I'm actually taking the genaic form of it. It's time released and it's called Phenytoin SOD EXT I'm supposed to be on 100 mg 3 x / day but I've only gotten up to 1/day so far. I got such a bad headache when I first started. They are capsules so it's not like you can take 1/2 of one. Crystal